Figure 1

Marker-assisted breeding of TS4. The number of positive plants over the number of total plants screened for presence of molecular makers are indicated in the generation undergone marker-assisted selection. Sd1 and sd1, the dominant and recessive alleles of the Sd1 gene; Wx^a and Wx^b, the alleles a and b of the rice Wx gene; Xa4 and xa4, dominant and recessive alleles of the Xa4 gene, respectively; Xa21 and xa21, dominant and recessive alleles of the Xa21 gene, respectively.